package com.zhangjun.demo.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Service;

@Service
public class UserServiceImpl implements UserDetailsService {

    @Autowired
    private PasswordEncoder passwordEncoder;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //根据username查询数据库
        if(!"admin".equals(username)){
            throw new UsernameNotFoundException("用户名错误");
        }
        //根据查询的对象比较密码
        String encode = passwordEncoder.encode("123456");
        //返回用户对象
        return new User("admin",encode, AuthorityUtils.commaSeparatedStringToAuthorityList("admin,sb"));
    }
}
